The H breaking capacity code indicates a high-interrupting rating. The exact value depends on the specific breaker inserted into this chassis.
Drawout mounting allows the breaker mechanism to be racked out for maintenance or isolation without disturbing the line and load connections — standard practice for switchgear where uptime and safe access are priorities. The chassis dimensions are 560 mm deep, 400 mm wide, and 440 mm high, fitting standard low-voltage switchgear cubicle compartments designed for drawout air breakers.